【正文】 山東科技大學(xué)課程設(shè)計(jì) 摘要 此 課程設(shè)計(jì) 主要 是通過編程 來 實(shí)現(xiàn)電子式數(shù)碼 管 顯示 單相單 用戶 的 用電量 ，其硬件部分主要 以 C8051F360 單片機(jī)為 控制 核心， 連接 電能計(jì)量、 LED 顯示、掉電存儲(chǔ)、按鍵清零等功能模塊 組成整個(gè)系統(tǒng)模塊。 通過對用戶供電電壓和電流實(shí)時(shí)采樣，采用專用的電能表集成電路，對采樣電壓電流信號進(jìn)行處理并相乘轉(zhuǎn)換成與電能成正比的脈沖輸出 ， 再經(jīng)過計(jì)數(shù)器和LED 顯示器 ， 實(shí)現(xiàn)對 單 用戶的用電情況進(jìn)行掉電存儲(chǔ) 、 按鍵清零等功能。 用 戶的用電量可以就地讀取，有效地提高了電能計(jì)量的準(zhǔn)確性，而且 整個(gè) 電路 具有線路布置 簡單，可靠性高 等優(yōu)點(diǎn)； 另外在用戶 電子式電能表的前面有 6位 LED 數(shù)碼管，最高位數(shù)碼管顯示為 戶號， 次高位顯示連接線， 后四位為 用 戶用電量， 清楚的 顯示 了用戶的戶號及其用電量 。 此次課程設(shè)計(jì)運(yùn)用了 單片機(jī) C8051F360 主控芯片、 AD7755 電能脈沖的轉(zhuǎn)換芯片 、 74HC165 實(shí)現(xiàn)按鍵清零芯片、 74HC164 驅(qū)動(dòng) 八段譯碼顯示器 芯片及 24C16防 止掉 電數(shù)據(jù)丟失 等芯片，并通過 protel 畫圖、 Multisim 軟件仿真、 Silicon IDE開發(fā)環(huán)境 進(jìn)行 軟件編程調(diào)試 、查找資料等學(xué)習(xí)工具，最 終實(shí)現(xiàn)了用戶 電量 在數(shù)碼管上 顯示 的功能。 關(guān)鍵詞： 電能表； 單片機(jī) C8051F360 芯片； 硬件設(shè)計(jì) ； 軟件設(shè)計(jì) 山東科技大學(xué)課程設(shè)計(jì) ABSTRACT The curriculum design is mainly through programming to achieve the electronic digital display single user39。s electricity, the hardwarepart mainly C8051F360 microcontroller as control core, connect theelectric energy metering, LED display, powerdown memory, buttonreset function module of the system module. Based on the user39。s power supply voltage and current realtime sampling, using special electric energy meter IC, for processing andmultiplication is converted into pulse output and power is proportional to the voltage and current sampling signal, and thenthrough the counter and LED display for single user of electricity to power storage, key features such as clear. The user of electricity consumption can be read in situ, effectively improve the accuracy of electric energy metering, and the whole circuit has simple circuitarrangement, high reliability。 there are 6 LED digital tube in addition to the users of electronic watthour meter in front of the most high,digital tube display for households, and secondarily display line, after four for the user of electricity, clearly shows the user39。s account number and power consumption. The curriculum design using the conversion pulse MCU C8051F360 main control chip, AD7755 chip, 74HC165 chip, 74HC164 buttonreset drive eight decoding display chip and 24C16 avoid losing data,chip, and through the Protel drawing, The Multisim software simulation, Silicon IDE development environment for software programming and debugging, find information, learning tools, and ultimately the user of electricity in the digital tube display function. Keywords: electric energy meter。 C8051F360 chip。 hardware design。 software design 山東科技大學(xué)課程設(shè)計(jì) 第 1 頁 共 35 頁 目錄 1 緒論 ...........................................................................................................................2 電能表在國內(nèi)發(fā)展?fàn)顩r ...................................................................................2 課題的研究內(nèi)容與意義 ..................................................................................2 2 設(shè)計(jì)任務(wù)與主要要求 .........................................................................................4 設(shè)計(jì)任務(wù) ..........................................................................................................4 設(shè)計(jì) 的主要要求 ..............................................................................................4 3 設(shè)計(jì)原理分析 .......................................................................................................5 設(shè)計(jì)的總體方案 ...............................................................................................5 設(shè)計(jì)方案框圖 ..................................................................................................6 電能表總電路圖 ..............................................................................................6 4 設(shè)計(jì)的主要內(nèi)容 ..................................................................................................8 硬件設(shè)計(jì) ...........................................................................................................8 C8051F360 單片機(jī)電路部分 .....................................................................8 +5V 穩(wěn)壓電源的設(shè)計(jì) ...............................................................................9 74HC164 驅(qū)動(dòng) LED 數(shù)碼管顯示的設(shè)計(jì) .....................................................11 24C16 芯片掉電存儲(chǔ)的設(shè)計(jì) ...................................................................13 74HC165 芯片按鍵清零的設(shè)計(jì) ...............................................................14 AD7755 電能轉(zhuǎn)換設(shè)計(jì) .............................................................................14 軟件設(shè)計(jì) ..........................................................................................................17 主函數(shù)流程圖 ........................................................................................17 AT24C16 讀函數(shù)流程圖 ..............................